[mirror_ubuntu-bionic-kernel.git] / net / mac80211 / debugfs.c

/*
 * mac80211 debugfs for wireless PHYs
 *
 * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
 *
 * GPLv2
 *
 */

#include <linux/debugfs.h>
#include <linux/rtnetlink.h>
#include "ieee80211_i.h"
#include "driver-ops.h"
#include "rate.h"
#include "debugfs.h"

int mac80211_open_file_generic(struct inode *inode, struct file *file)
{
	file->private_data = inode->i_private;
	return 0;
}

#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...)		\
static ssize_t name## _read(struct file *file, char __user *userbuf,	\
			    size_t count, loff_t *ppos)			\
{									\
	struct ieee80211_local *local = file->private_data;		\
	char buf[buflen];						\
	int res;							\
									\
	res = scnprintf(buf, buflen, fmt "\n", ##value);		\
	return simple_read_from_buffer(userbuf, count, ppos, buf, res);	\
}									\
									\
static const struct file_operations name## _ops = {			\
	.read = name## _read,						\
	.open = mac80211_open_file_generic,				\
};

#define DEBUGFS_ADD(name)						\
	local->debugfs.name = debugfs_create_file(#name, 0400, phyd,	\
						  local, &name## _ops);

#define DEBUGFS_ADD_MODE(name, mode)					\
	local->debugfs.name = debugfs_create_file(#name, mode, phyd,	\
						  local, &name## _ops);

#define DEBUGFS_DEL(name)						\
	debugfs_remove(local->debugfs.name);				\
	local->debugfs.name = NULL;


DEBUGFS_READONLY_FILE(frequency, 20, "%d",
		      local->hw.conf.channel->center_freq);
DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
		      local->total_ps_buffered);
DEBUGFS_READONLY_FILE(wep_iv, 20, "%#08x",
		      local->wep_iv & 0xffffff);
DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
		      local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>");

static ssize_t tsf_read(struct file *file, char __user *user_buf,
			     size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	u64 tsf;
	char buf[100];

	tsf = drv_get_tsf(local);

	snprintf(buf, sizeof(buf), "0x%016llx\n", (unsigned long long) tsf);

	return simple_read_from_buffer(user_buf, count, ppos, buf, 19);
}

static ssize_t tsf_write(struct file *file,
                         const char __user *user_buf,
                         size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	unsigned long long tsf;
	char buf[100];
	size_t len;

	len = min(count, sizeof(buf) - 1);
	if (copy_from_user(buf, user_buf, len))
		return -EFAULT;
	buf[len] = '\0';

	if (strncmp(buf, "reset", 5) == 0) {
		if (local->ops->reset_tsf) {
			drv_reset_tsf(local);
			printk(KERN_INFO "%s: debugfs reset TSF\n", wiphy_name(local->hw.wiphy));
		}
	} else {
		tsf = simple_strtoul(buf, NULL, 0);
		if (local->ops->set_tsf) {
			drv_set_tsf(local, tsf);
			printk(KERN_INFO "%s: debugfs set TSF to %#018llx\n", wiphy_name(local->hw.wiphy), tsf);
		}
	}

	return count;
}

static const struct file_operations tsf_ops = {
	.read = tsf_read,
	.write = tsf_write,
	.open = mac80211_open_file_generic
};

static ssize_t reset_write(struct file *file, const char __user *user_buf,
			   size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;

	rtnl_lock();
	__ieee80211_suspend(&local->hw);
	__ieee80211_resume(&local->hw);
	rtnl_unlock();

	return count;
}

static const struct file_operations reset_ops = {
	.write = reset_write,
	.open = mac80211_open_file_generic,
};

static ssize_t noack_read(struct file *file, char __user *user_buf,
			  size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	int res;
	char buf[10];

	res = scnprintf(buf, sizeof(buf), "%d\n", local->wifi_wme_noack_test);

	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
}

static ssize_t noack_write(struct file *file,
			   const char __user *user_buf,
			   size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	char buf[10];
	size_t len;

	len = min(count, sizeof(buf) - 1);
	if (copy_from_user(buf, user_buf, len))
		return -EFAULT;
	buf[len] = '\0';

	local->wifi_wme_noack_test = !!simple_strtoul(buf, NULL, 0);

	return count;
}

static const struct file_operations noack_ops = {
	.read = noack_read,
	.write = noack_write,
	.open = mac80211_open_file_generic
};

static ssize_t queues_read(struct file *file, char __user *user_buf,
			   size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	unsigned long flags;
	char buf[IEEE80211_MAX_QUEUES * 20];
	int q, res = 0;

	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
	for (q = 0; q < local->hw.queues; q++)
		res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
				local->queue_stop_reasons[q],
				skb_queue_len(&local->pending[q]));
	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);

	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
}

static const struct file_operations queues_ops = {
	.read = queues_read,
	.open = mac80211_open_file_generic
};

/* statistics stuff */

#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...)			\
	DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value)

static ssize_t format_devstat_counter(struct ieee80211_local *local,
	char __user *userbuf,
	size_t count, loff_t *ppos,
	int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
			  int buflen))
{
	struct ieee80211_low_level_stats stats;
	char buf[20];
	int res;

	rtnl_lock();
	res = drv_get_stats(local, &stats);
	rtnl_unlock();
	if (res)
		return res;
	res = printvalue(&stats, buf, sizeof(buf));
	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}

#define DEBUGFS_DEVSTATS_FILE(name)					\
static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
				 char *buf, int buflen)			\
{									\
	return scnprintf(buf, buflen, "%u\n", stats->name);		\
}									\
static ssize_t stats_ ##name## _read(struct file *file,			\
				     char __user *userbuf,		\
				     size_t count, loff_t *ppos)	\
{									\
	return format_devstat_counter(file->private_data,		\
				      userbuf,				\
				      count,				\
				      ppos,				\
				      print_devstats_##name);		\
}									\
									\
static const struct file_operations stats_ ##name## _ops = {		\
	.read = stats_ ##name## _read,					\
	.open = mac80211_open_file_generic,				\
};

#define DEBUGFS_STATS_ADD(name)						\
	local->debugfs.stats.name = debugfs_create_file(#name, 0400, statsd,\
		local, &stats_ ##name## _ops);

#define DEBUGFS_STATS_DEL(name)						\
	debugfs_remove(local->debugfs.stats.name);			\
	local->debugfs.stats.name = NULL;

DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u",
		   local->dot11TransmittedFragmentCount);
DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u",
		   local->dot11MulticastTransmittedFrameCount);
DEBUGFS_STATS_FILE(failed_count, 20, "%u",
		   local->dot11FailedCount);
DEBUGFS_STATS_FILE(retry_count, 20, "%u",
		   local->dot11RetryCount);
DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u",
		   local->dot11MultipleRetryCount);
DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u",
		   local->dot11FrameDuplicateCount);
DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u",
		   local->dot11ReceivedFragmentCount);
DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u",
		   local->dot11MulticastReceivedFrameCount);
DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u",
		   local->dot11TransmittedFrameCount);
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u",
		   local->tx_handlers_drop);
DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u",
		   local->tx_handlers_queued);
DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u",
		   local->tx_handlers_drop_unencrypted);
DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u",
		   local->tx_handlers_drop_fragment);
DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u",
		   local->tx_handlers_drop_wep);
DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u",
		   local->tx_handlers_drop_not_assoc);
DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u",
		   local->tx_handlers_drop_unauth_port);
DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u",
		   local->rx_handlers_drop);
DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u",
		   local->rx_handlers_queued);
DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u",
		   local->rx_handlers_drop_nullfunc);
DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u",
		   local->rx_handlers_drop_defrag);
DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u",
		   local->rx_handlers_drop_short);
DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u",
		   local->rx_handlers_drop_passive_scan);
DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u",
		   local->tx_expand_skb_head);
DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u",
		   local->tx_expand_skb_head_cloned);
DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u",
		   local->rx_expand_skb_head);
DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u",
		   local->rx_expand_skb_head2);
DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u",
		   local->rx_handlers_fragments);
DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u",
		   local->tx_status_drop);

#endif

DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);


void debugfs_hw_add(struct ieee80211_local *local)
{
	struct dentry *phyd = local->hw.wiphy->debugfsdir;
	struct dentry *statsd;

	if (!phyd)
		return;

	local->debugfs.stations = debugfs_create_dir("stations", phyd);
	local->debugfs.keys = debugfs_create_dir("keys", phyd);

	DEBUGFS_ADD(frequency);
	DEBUGFS_ADD(total_ps_buffered);
	DEBUGFS_ADD(wep_iv);
	DEBUGFS_ADD(tsf);
	DEBUGFS_ADD(queues);
	DEBUGFS_ADD_MODE(reset, 0200);
	DEBUGFS_ADD(noack);

	statsd = debugfs_create_dir("statistics", phyd);
	local->debugfs.statistics = statsd;

	/* if the dir failed, don't put all the other things into the root! */
	if (!statsd)
		return;

	DEBUGFS_STATS_ADD(transmitted_fragment_count);
	DEBUGFS_STATS_ADD(multicast_transmitted_frame_count);
	DEBUGFS_STATS_ADD(failed_count);
	DEBUGFS_STATS_ADD(retry_count);
	DEBUGFS_STATS_ADD(multiple_retry_count);
	DEBUGFS_STATS_ADD(frame_duplicate_count);
	DEBUGFS_STATS_ADD(received_fragment_count);
	DEBUGFS_STATS_ADD(multicast_received_frame_count);
	DEBUGFS_STATS_ADD(transmitted_frame_count);
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
	DEBUGFS_STATS_ADD(tx_handlers_drop);
	DEBUGFS_STATS_ADD(tx_handlers_queued);
	DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted);
	DEBUGFS_STATS_ADD(tx_handlers_drop_fragment);
	DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
	DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
	DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
	DEBUGFS_STATS_ADD(rx_handlers_drop);
	DEBUGFS_STATS_ADD(rx_handlers_queued);
	DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
	DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
	DEBUGFS_STATS_ADD(rx_handlers_drop_short);
	DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan);
	DEBUGFS_STATS_ADD(tx_expand_skb_head);
	DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
	DEBUGFS_STATS_ADD(rx_expand_skb_head);
	DEBUGFS_STATS_ADD(rx_expand_skb_head2);
	DEBUGFS_STATS_ADD(rx_handlers_fragments);
	DEBUGFS_STATS_ADD(tx_status_drop);
#endif
	DEBUGFS_STATS_ADD(dot11ACKFailureCount);
	DEBUGFS_STATS_ADD(dot11RTSFailureCount);
	DEBUGFS_STATS_ADD(dot11FCSErrorCount);
	DEBUGFS_STATS_ADD(dot11RTSSuccessCount);
}

void debugfs_hw_del(struct ieee80211_local *local)
{
	DEBUGFS_DEL(frequency);
	DEBUGFS_DEL(total_ps_buffered);
	DEBUGFS_DEL(wep_iv);
	DEBUGFS_DEL(tsf);
	DEBUGFS_DEL(queues);
	DEBUGFS_DEL(reset);
	DEBUGFS_DEL(noack);

	DEBUGFS_STATS_DEL(transmitted_fragment_count);
	DEBUGFS_STATS_DEL(multicast_transmitted_frame_count);
	DEBUGFS_STATS_DEL(failed_count);
	DEBUGFS_STATS_DEL(retry_count);
	DEBUGFS_STATS_DEL(multiple_retry_count);
	DEBUGFS_STATS_DEL(frame_duplicate_count);
	DEBUGFS_STATS_DEL(received_fragment_count);
	DEBUGFS_STATS_DEL(multicast_received_frame_count);
	DEBUGFS_STATS_DEL(transmitted_frame_count);
	DEBUGFS_STATS_DEL(num_scans);
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
	DEBUGFS_STATS_DEL(tx_handlers_drop);
	DEBUGFS_STATS_DEL(tx_handlers_queued);
	DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted);
	DEBUGFS_STATS_DEL(tx_handlers_drop_fragment);
	DEBUGFS_STATS_DEL(tx_handlers_drop_wep);
	DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc);
	DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port);
	DEBUGFS_STATS_DEL(rx_handlers_drop);
	DEBUGFS_STATS_DEL(rx_handlers_queued);
	DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc);
	DEBUGFS_STATS_DEL(rx_handlers_drop_defrag);
	DEBUGFS_STATS_DEL(rx_handlers_drop_short);
	DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan);
	DEBUGFS_STATS_DEL(tx_expand_skb_head);
	DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned);
	DEBUGFS_STATS_DEL(rx_expand_skb_head);
	DEBUGFS_STATS_DEL(rx_expand_skb_head2);
	DEBUGFS_STATS_DEL(rx_handlers_fragments);
	DEBUGFS_STATS_DEL(tx_status_drop);
#endif
	DEBUGFS_STATS_DEL(dot11ACKFailureCount);
	DEBUGFS_STATS_DEL(dot11RTSFailureCount);
	DEBUGFS_STATS_DEL(dot11FCSErrorCount);
	DEBUGFS_STATS_DEL(dot11RTSSuccessCount);

	debugfs_remove(local->debugfs.statistics);
	local->debugfs.statistics = NULL;
	debugfs_remove(local->debugfs.stations);
	local->debugfs.stations = NULL;
	debugfs_remove(local->debugfs.keys);
	local->debugfs.keys = NULL;
}
Commit	Line	Data
e9f207f0 JB	1	/*
	2	* mac80211 debugfs for wireless PHYs
	3	*
	4	* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
	5	*
	6	* GPLv2
	7	*
	8	*/
	9
	10	#include <linux/debugfs.h>
	11	#include <linux/rtnetlink.h>
	12	#include "ieee80211_i.h"
24487981	13	#include "driver-ops.h"
2c8dccc7	14	#include "rate.h"
e9f207f0 JB	15	#include "debugfs.h"
	16
	17	int mac80211_open_file_generic(struct inode inode, struct file file)
	18	{
	19	file->private_data = inode->i_private;
	20	return 0;
	21	}
	22
e9f207f0 JB	23	#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
	24	static ssize_t name## _read(struct file file, char __user userbuf, \
	25	size_t count, loff_t *ppos) \
	26	{ \
	27	struct ieee80211_local *local = file->private_data; \
	28	char buf[buflen]; \
	29	int res; \
	30	\
	31	res = scnprintf(buf, buflen, fmt "\n", ##value); \
	32	return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
	33	} \
	34	\
	35	static const struct file_operations name## _ops = { \
	36	.read = name## _read, \
	37	.open = mac80211_open_file_generic, \
	38	};
	39
	40	#define DEBUGFS_ADD(name) \
bebb8a5e	41	local->debugfs.name = debugfs_create_file(#name, 0400, phyd, \
e9f207f0 JB	42	local, &name## _ops);
e9f207f0 JB	43
827b1fb4 JB	44	#define DEBUGFS_ADD_MODE(name, mode) \
	45	local->debugfs.name = debugfs_create_file(#name, mode, phyd, \
	46	local, &name## _ops);
	47
e9f207f0 JB	48	#define DEBUGFS_DEL(name) \
	49	debugfs_remove(local->debugfs.name); \
	50	local->debugfs.name = NULL;
	51
	52
e9f207f0	53	DEBUGFS_READONLY_FILE(frequency, 20, "%d",
8318d78a	54	local->hw.conf.channel->center_freq);
e9f207f0 JB	55	DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
e9f207f0 JB	56	local->total_ps_buffered);
3b5d665b	57	DEBUGFS_READONLY_FILE(wep_iv, 20, "%#08x",
e9f207f0	58	local->wep_iv & 0xffffff);
e9f207f0 JB	59	DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
e9f207f0 JB	60	local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>");
3b5d665b AF	61
	62	static ssize_t tsf_read(struct file file, char __user user_buf,
	63	size_t count, loff_t *ppos)
	64	{
	65	struct ieee80211_local *local = file->private_data;
24487981	66	u64 tsf;
3b5d665b AF	67	char buf[100];
3b5d665b AF	68
24487981	69	tsf = drv_get_tsf(local);
3b5d665b AF	70
	71	snprintf(buf, sizeof(buf), "0x%016llx\n", (unsigned long long) tsf);
	72
	73	return simple_read_from_buffer(user_buf, count, ppos, buf, 19);
	74	}
	75
	76	static ssize_t tsf_write(struct file *file,
	77	const char __user *user_buf,
	78	size_t count, loff_t *ppos)
	79	{
	80	struct ieee80211_local *local = file->private_data;
	81	unsigned long long tsf;
	82	char buf[100];
	83	size_t len;
	84
	85	len = min(count, sizeof(buf) - 1);
	86	if (copy_from_user(buf, user_buf, len))
	87	return -EFAULT;
	88	buf[len] = '\0';
	89
	90	if (strncmp(buf, "reset", 5) == 0) {
	91	if (local->ops->reset_tsf) {
24487981	92	drv_reset_tsf(local);
3b5d665b AF	93	printk(KERN_INFO "%s: debugfs reset TSF\n", wiphy_name(local->hw.wiphy));
	94	}
	95	} else {
	96	tsf = simple_strtoul(buf, NULL, 0);
	97	if (local->ops->set_tsf) {
24487981	98	drv_set_tsf(local, tsf);
3b5d665b AF	99	printk(KERN_INFO "%s: debugfs set TSF to %#018llx\n", wiphy_name(local->hw.wiphy), tsf);
	100	}
	101	}
	102
	103	return count;
	104	}
	105
	106	static const struct file_operations tsf_ops = {
	107	.read = tsf_read,
	108	.write = tsf_write,
	109	.open = mac80211_open_file_generic
	110	};
e9f207f0	111
827b1fb4 JB	112	static ssize_t reset_write(struct file file, const char __user user_buf,
	113	size_t count, loff_t *ppos)
	114	{
	115	struct ieee80211_local *local = file->private_data;
	116
	117	rtnl_lock();
	118	__ieee80211_suspend(&local->hw);
	119	__ieee80211_resume(&local->hw);
	120	rtnl_unlock();
	121
	122	return count;
	123	}
	124
	125	static const struct file_operations reset_ops = {
	126	.write = reset_write,
	127	.open = mac80211_open_file_generic,
	128	};
	129
d3707d99 JB	130	static ssize_t noack_read(struct file file, char __user user_buf,
	131	size_t count, loff_t *ppos)
	132	{
	133	struct ieee80211_local *local = file->private_data;
	134	int res;
	135	char buf[10];
	136
	137	res = scnprintf(buf, sizeof(buf), "%d\n", local->wifi_wme_noack_test);
	138
	139	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
	140	}
	141
	142	static ssize_t noack_write(struct file *file,
	143	const char __user *user_buf,
	144	size_t count, loff_t *ppos)
	145	{
	146	struct ieee80211_local *local = file->private_data;
	147	char buf[10];
	148	size_t len;
	149
	150	len = min(count, sizeof(buf) - 1);
	151	if (copy_from_user(buf, user_buf, len))
	152	return -EFAULT;
	153	buf[len] = '\0';
	154
	155	local->wifi_wme_noack_test = !!simple_strtoul(buf, NULL, 0);
	156
	157	return count;
	158	}
	159
	160	static const struct file_operations noack_ops = {
	161	.read = noack_read,
	162	.write = noack_write,
	163	.open = mac80211_open_file_generic
	164	};
	165
db2e6bd4 JB	166	static ssize_t queues_read(struct file file, char __user user_buf,
	167	size_t count, loff_t *ppos)
	168	{
	169	struct ieee80211_local *local = file->private_data;
	170	unsigned long flags;
	171	char buf[IEEE80211_MAX_QUEUES * 20];
	172	int q, res = 0;
	173
	174	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
	175	for (q = 0; q < local->hw.queues; q++)
	176	res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
	177	local->queue_stop_reasons[q],
3b8d81e0	178	skb_queue_len(&local->pending[q]));
db2e6bd4 JB	179	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
	180
	181	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
	182	}
	183
	184	static const struct file_operations queues_ops = {
	185	.read = queues_read,
	186	.open = mac80211_open_file_generic
	187	};
	188
e9f207f0 JB	189	/* statistics stuff */
e9f207f0 JB	190
e9f207f0 JB	191	#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \
	192	DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value)
	193
	194	static ssize_t format_devstat_counter(struct ieee80211_local *local,
	195	char __user *userbuf,
	196	size_t count, loff_t *ppos,
	197	int (printvalue)(struct ieee80211_low_level_stats stats, char *buf,
	198	int buflen))
	199	{
	200	struct ieee80211_low_level_stats stats;
	201	char buf[20];
	202	int res;
	203
75636525	204	rtnl_lock();
24487981	205	res = drv_get_stats(local, &stats);
e9f207f0	206	rtnl_unlock();
24487981 JB	207	if (res)
	208	return res;
	209	res = printvalue(&stats, buf, sizeof(buf));
e9f207f0 JB	210	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
	211	}
	212
	213	#define DEBUGFS_DEVSTATS_FILE(name) \
	214	static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
	215	char *buf, int buflen) \
	216	{ \
	217	return scnprintf(buf, buflen, "%u\n", stats->name); \
	218	} \
	219	static ssize_t stats_ ##name## _read(struct file *file, \
	220	char __user *userbuf, \
	221	size_t count, loff_t *ppos) \
	222	{ \
	223	return format_devstat_counter(file->private_data, \
	224	userbuf, \
	225	count, \
	226	ppos, \
	227	print_devstats_##name); \
	228	} \
	229	\
	230	static const struct file_operations stats_ ##name## _ops = { \
	231	.read = stats_ ##name## _read, \
	232	.open = mac80211_open_file_generic, \
	233	};
	234
	235	#define DEBUGFS_STATS_ADD(name) \
bebb8a5e	236	local->debugfs.stats.name = debugfs_create_file(#name, 0400, statsd,\
e9f207f0 JB	237	local, &stats_ ##name## _ops);
	238
	239	#define DEBUGFS_STATS_DEL(name) \
	240	debugfs_remove(local->debugfs.stats.name); \
	241	local->debugfs.stats.name = NULL;
	242
	243	DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u",
	244	local->dot11TransmittedFragmentCount);
	245	DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u",
	246	local->dot11MulticastTransmittedFrameCount);
	247	DEBUGFS_STATS_FILE(failed_count, 20, "%u",
	248	local->dot11FailedCount);
	249	DEBUGFS_STATS_FILE(retry_count, 20, "%u",
	250	local->dot11RetryCount);
	251	DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u",
	252	local->dot11MultipleRetryCount);
	253	DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u",
	254	local->dot11FrameDuplicateCount);
	255	DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u",
	256	local->dot11ReceivedFragmentCount);
	257	DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u",
	258	local->dot11MulticastReceivedFrameCount);
	259	DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u",
	260	local->dot11TransmittedFrameCount);
e9f207f0 JB	261	#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
	262	DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u",
	263	local->tx_handlers_drop);
	264	DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u",
	265	local->tx_handlers_queued);
	266	DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u",
	267	local->tx_handlers_drop_unencrypted);
	268	DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u",
	269	local->tx_handlers_drop_fragment);
	270	DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u",
	271	local->tx_handlers_drop_wep);
	272	DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u",
	273	local->tx_handlers_drop_not_assoc);
	274	DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u",
	275	local->tx_handlers_drop_unauth_port);
	276	DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u",
	277	local->rx_handlers_drop);
	278	DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u",
	279	local->rx_handlers_queued);
	280	DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u",
	281	local->rx_handlers_drop_nullfunc);
	282	DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u",
	283	local->rx_handlers_drop_defrag);
	284	DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u",
	285	local->rx_handlers_drop_short);
	286	DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u",
	287	local->rx_handlers_drop_passive_scan);
	288	DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u",
	289	local->tx_expand_skb_head);
	290	DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u",
	291	local->tx_expand_skb_head_cloned);
	292	DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u",
	293	local->rx_expand_skb_head);
	294	DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u",
	295	local->rx_expand_skb_head2);
	296	DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u",
	297	local->rx_handlers_fragments);
	298	DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u",
	299	local->tx_status_drop);
	300
e9f207f0 JB	301	#endif
	302
	303	DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
	304	DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
	305	DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
	306	DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
	307
	308
	309	void debugfs_hw_add(struct ieee80211_local *local)
	310	{
	311	struct dentry *phyd = local->hw.wiphy->debugfsdir;
	312	struct dentry *statsd;
	313
	314	if (!phyd)
	315	return;
	316
	317	local->debugfs.stations = debugfs_create_dir("stations", phyd);
	318	local->debugfs.keys = debugfs_create_dir("keys", phyd);
	319
e9f207f0	320	DEBUGFS_ADD(frequency);
e9f207f0	321	DEBUGFS_ADD(total_ps_buffered);
e9f207f0	322	DEBUGFS_ADD(wep_iv);
ae54c985	323	DEBUGFS_ADD(tsf);
db2e6bd4	324	DEBUGFS_ADD(queues);
827b1fb4	325	DEBUGFS_ADD_MODE(reset, 0200);
d3707d99	326	DEBUGFS_ADD(noack);
e9f207f0 JB	327
	328	statsd = debugfs_create_dir("statistics", phyd);
	329	local->debugfs.statistics = statsd;
	330
	331	/* if the dir failed, don't put all the other things into the root! */
	332	if (!statsd)
	333	return;
	334
	335	DEBUGFS_STATS_ADD(transmitted_fragment_count);
	336	DEBUGFS_STATS_ADD(multicast_transmitted_frame_count);
	337	DEBUGFS_STATS_ADD(failed_count);
	338	DEBUGFS_STATS_ADD(retry_count);
	339	DEBUGFS_STATS_ADD(multiple_retry_count);
	340	DEBUGFS_STATS_ADD(frame_duplicate_count);
	341	DEBUGFS_STATS_ADD(received_fragment_count);
	342	DEBUGFS_STATS_ADD(multicast_received_frame_count);
	343	DEBUGFS_STATS_ADD(transmitted_frame_count);
e9f207f0 JB	344	#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
	345	DEBUGFS_STATS_ADD(tx_handlers_drop);
	346	DEBUGFS_STATS_ADD(tx_handlers_queued);
	347	DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted);
	348	DEBUGFS_STATS_ADD(tx_handlers_drop_fragment);
	349	DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
	350	DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
	351	DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
	352	DEBUGFS_STATS_ADD(rx_handlers_drop);
	353	DEBUGFS_STATS_ADD(rx_handlers_queued);
	354	DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
	355	DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
	356	DEBUGFS_STATS_ADD(rx_handlers_drop_short);
	357	DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan);
	358	DEBUGFS_STATS_ADD(tx_expand_skb_head);
	359	DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
	360	DEBUGFS_STATS_ADD(rx_expand_skb_head);
	361	DEBUGFS_STATS_ADD(rx_expand_skb_head2);
	362	DEBUGFS_STATS_ADD(rx_handlers_fragments);
	363	DEBUGFS_STATS_ADD(tx_status_drop);
e9f207f0 JB	364	#endif
	365	DEBUGFS_STATS_ADD(dot11ACKFailureCount);
	366	DEBUGFS_STATS_ADD(dot11RTSFailureCount);
	367	DEBUGFS_STATS_ADD(dot11FCSErrorCount);
	368	DEBUGFS_STATS_ADD(dot11RTSSuccessCount);
	369	}
	370
	371	void debugfs_hw_del(struct ieee80211_local *local)
	372	{
e9f207f0	373	DEBUGFS_DEL(frequency);
e9f207f0	374	DEBUGFS_DEL(total_ps_buffered);
e9f207f0	375	DEBUGFS_DEL(wep_iv);
ae54c985	376	DEBUGFS_DEL(tsf);
db2e6bd4	377	DEBUGFS_DEL(queues);
827b1fb4	378	DEBUGFS_DEL(reset);
d3707d99	379	DEBUGFS_DEL(noack);
e9f207f0 JB	380
	381	DEBUGFS_STATS_DEL(transmitted_fragment_count);
	382	DEBUGFS_STATS_DEL(multicast_transmitted_frame_count);
	383	DEBUGFS_STATS_DEL(failed_count);
	384	DEBUGFS_STATS_DEL(retry_count);
	385	DEBUGFS_STATS_DEL(multiple_retry_count);
	386	DEBUGFS_STATS_DEL(frame_duplicate_count);
	387	DEBUGFS_STATS_DEL(received_fragment_count);
	388	DEBUGFS_STATS_DEL(multicast_received_frame_count);
	389	DEBUGFS_STATS_DEL(transmitted_frame_count);
e9f207f0 JB	390	DEBUGFS_STATS_DEL(num_scans);
	391	#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
	392	DEBUGFS_STATS_DEL(tx_handlers_drop);
	393	DEBUGFS_STATS_DEL(tx_handlers_queued);
	394	DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted);
	395	DEBUGFS_STATS_DEL(tx_handlers_drop_fragment);
	396	DEBUGFS_STATS_DEL(tx_handlers_drop_wep);
	397	DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc);
	398	DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port);
	399	DEBUGFS_STATS_DEL(rx_handlers_drop);
	400	DEBUGFS_STATS_DEL(rx_handlers_queued);
	401	DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc);
	402	DEBUGFS_STATS_DEL(rx_handlers_drop_defrag);
	403	DEBUGFS_STATS_DEL(rx_handlers_drop_short);
	404	DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan);
	405	DEBUGFS_STATS_DEL(tx_expand_skb_head);
	406	DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned);
	407	DEBUGFS_STATS_DEL(rx_expand_skb_head);
	408	DEBUGFS_STATS_DEL(rx_expand_skb_head2);
	409	DEBUGFS_STATS_DEL(rx_handlers_fragments);
	410	DEBUGFS_STATS_DEL(tx_status_drop);
e9f207f0 JB	411	#endif
	412	DEBUGFS_STATS_DEL(dot11ACKFailureCount);
	413	DEBUGFS_STATS_DEL(dot11RTSFailureCount);
	414	DEBUGFS_STATS_DEL(dot11FCSErrorCount);
	415	DEBUGFS_STATS_DEL(dot11RTSSuccessCount);
	416
	417	debugfs_remove(local->debugfs.statistics);
	418	local->debugfs.statistics = NULL;
	419	debugfs_remove(local->debugfs.stations);
	420	local->debugfs.stations = NULL;
	421	debugfs_remove(local->debugfs.keys);
	422	local->debugfs.keys = NULL;
	423	}